Home / 88,289.99-131,603.25-81,204.11

Finding the Fourth Proportional to 88,289.99, 131,603.25 and 81,204.11

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Solution

The fourth proportional to 88,289.99, 131,603.25 and 81,204.11 is: 121,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,289.99 : 131,603.25 = 81,204.11 : x
  2. Step 2: Convert to fraction form
    88,289.99/131,603.25 = 81,204.11/x
  3. Step 3: Cross multiply
    88,289.99x = 131,603.25 × 81,204.11
  4. Step 4: Simplify right side
    88,289.99x = 10,686,724,789.36
  5. Step 5: Solve for x
    x = 10,686,724,789.36/88,289.99
  6. Step 6: Final answer
    x = 121,041.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.